Fire-pan construction for oil-burning fire boxes



P. 1. HIMMELmGHT AND A. H. WILLEN. FIRE PAN CONSTRUCTION FOR OII. BURNING FIRE BOXES. APPLICATION FILED MAYZO. 1920.

Patented Feb. 14,

4 SHEETS-SHEET I.

A TTORNE YS.

R. J. HIMIVIELRIGHT AND A. H. WILLETT. FIRE PAN CONSTRUCTION FOR OIL BURNING FIRE BOXES.

APPLICATION FILED MAY 20, 1920.

Patented Feb. 14, 1922.

4 SHEETS-SHEET 2.

INVENTORS W BY ATTORNEYS n.1. HIMMELmGH AND A. H. WILLENA FIRE PAN CONSTRUCTION FOR OILBURNING FIRE BOXES.

APPLICATION FILED MAY 20, I920. 1,406,732. .Patented Feb.14, 1922.

4 SHEETS-MEET s.

R. l. HIMMELRIGHT AND A. H. WILLETT. FIRE PAN CONSTRUCTION FOR oIL BURNING FIRE BOXES.

' IIIPPIIICIVION` FILED MAY 20, i920. Y I 1,406,732. rammed Feb. 14, 1922.

4 SHEETS-SHEET 4.

INVENTORS *l 'www' M1, .W

UNTTED STATES PATENT OFFICE.

RALEIGH a'. HIMMELEIGHT, on ENGLEWOOD, A ND ALFRED rr. WILLETT,

NEW YORK, NEW JERSEY.

FIRE-PAN CONSTRUCTION FOR OIL-BURNING FIRE BOXES.

To all whom it may concern Be it known that we, RALEIGH J. HIMMEL- nrorrr and ALFRED H. VILLETT, bot-h citizens of the United States, residing at Englewood, in the county oifBergen and State of New Jersey, and at West New York, in the county of Hudson and State of New Jersey, respectively, have invented certain new and useful Improvements in FiraFan Construction for Oil-Burning Fire Boxes, ot which the following is a speoiiication.

This invention relates primarily to the provisionA of a construction oit the character specified which is particularly applicable to locomotive lire boxes, and in connection with the following description we have illustrated it as embodied in such a fire box. Such pans are lined with refractory bricks and are designed to close the bottom of the fire box and to provide a name-way channel having communication with the combustion space oi the re box. A suitable burner or burners project through openings either at the forward end of the channel or at the back end.

To our knowledge these oil or fire pans are commonly made up from ordinary tank steelvor boiler plate and angle irons. `In a great many cases the pans are constructed generally in the simplest manner to suit individual fire boxes, and little, it any, consideration is given to the bricking requirements, the results being unsatisfactory in many cases due' to the amount of patch work necessary for the bricking.

It has also been proposed to cast these pans in a single piece, but this oit necessity requires the provision of a separate pan for each size or shape of lire box. Vlli. this method be followed the number of patterns which it is necessary to carry in stock is almost prohibitive.

The principal. object of our invention is to provide a simple means for constructing these pans which will avoid the above diiiiculties and yet be comprehensive enough to take in the entire scope of the locomotiveV specification of Letters Patent. Panted Feb 14, 1922.

Application filed May 20, 1920. Serial No. 382,741.

provide for practically all of the various sizes and shapes of fire` boxes now in useV on locomotives. v

A further object of our invention and one which is incidental to the foregoing is the standardization of the bricking with which the pans are lined. With certain fixed standards in the sizes of the pans it is possible to utilize standard bricks in standard varrangements andthis with an absolute minimum oi what is termed patching This is very important, as in service patch work bricking tends to jar loose necessitating frequent repairs.

It is a further object of our invention to provide a construction of the character specilied which Vwill permit of placino` the pan horizontally in the re box irrespective of the slope of the mud ring.

These, together with such other object-s las may hereinafter appear or are incident to our invention we obtain by mea-ns of a construction which we have illustratedin preferred form -in the accompanying drawings, wherein Figure l is al central, vertical, longitudinal section through a locomotive fire box embodying our improvements; Figure 2 is a section on the line ,f2-. Q of Figure 1; Figure 8 is a section on the line 3-3 of Figure 1; Figure 4 is a section on the line he' of Figure l; Figure 5 is a central vertical longitudina-l section through the lower portion of a locomotive lire box embodying a modiied form of our invention; Figure 6 is a section on t-he line 6 6 of Figure 5; Figure 7 is a section similar to that of Fi ure 3 but illustrating our` invention as embo ied in a radial pan as'distinguished from the channel shaped pan of the other figures; Figure 8 is a section on the line k8--8 of Figure 2 illustrating the standard Vends and the pan in side elevation; Figure 9 is a seetion on the line 9-9 of Figure 6; and Figure 10 is a detailed view of the pan construction n illustrated in Figures 5, 6 and 9.

Referring to the drawings and particularly to Figures l to 4 inclusive it will be .seen that the tire box, briefly described, comprises the usual crownr sheet l, flue sheet,

side-back sheet 5 and outside back sheet 6, through which is provided the usual door opening 7. The forward water leg 8, the rear water leg 9 and the side water legs 10 inside side sheets 3, outside side sheets, 4 in- Y mud ring ll.

are closed at the bottom by the customary mud ring ll. The bottom oi" the fire box chamber A formed by the above parts is closed by means of the pan and brick construction now to be described. Y

Supported by and extending between` the forward channel shaped casting 1:2 and the similarly shaped rear casting 13 is the channel shaped oil or fire pan llthrougli the bottom of whichv there is the customary clean out and air inlet opening 15. AExtending beneath and supporting each casting Vis` a suitably bent T-iron 16 which we propose to secure in any preferred-manner to the rlhese T-irons 'torni the foundation support, so to speak, for the entire pan construction.

At their upper edges the castings, as

shown, are provided with horizontally proj ecting flanges 1T which cooperate with suitable angle irons 18 attached to the walls of the lire box to support the side plates 19 and the end. plates 20. The end plates 20 extend transversely of the lire box from one inside sheet to the otl er and cover the distance longitudinally between the front and back sheets and the forum'dlyk and rearwardly projecting flanges li' ot the standard end castings. The side plates eX- teiid longitudinally of the lire box substantially from end to end oit the lire pan and cover the distance transversely between the side i'ianges oi" the end castings and the 'inside side sheets of the lire box.

ln the embodiment shown the forward casting l2 is provided with a suitableburner opening 2l and is constructed to carry the burner 22.

By providing two or three standard sizes ot the standard ends or castings it is possible to take care oit the entire scope ot the locomotive lire bos: field. Variations in width or depth are vtaken care of by the castings themselves and variations in length are talten care of by cutting from pans of correspondingly standardized widths,the length suitable or desirable'for the particular locomotive to which the application is being made. This is a comparatively simple matter :tor anyirailioad shop to handle. The distances between the ends of the pan and the inside front and back sheets and the distances between the pan `and the inside side sheets are readily taken care of by varying the sizes of the ond plates and of' the side plates. y

.The pans are provided with a refractory lining composed of a plurality of bricks 23, the sizes and arrangement of'which it will be readily understood, can be standardized in conformity with the standard ends or castings. In other words for any given size or character of pan, as determined by the shape and sizeof the ends utilized, there can easily `lee-provided a standard briclring arrangement. This will'practically eliminate all necessity for patch work construction.

At the back end of the fire boi: opposite the burner we provide the refractory flash wall B. The spaces between the forward end ot the pan and the forward water leg v8 and between the sides of the pan and the side sheets 3 are covered by means of the refractory licor wall composed of a plurality or bricks and indicated as a wholerby the reference character C.

Bythe construction above disclosed, it will be seen that we have taken care of the most di'tlicult kof the bricking problems, namely, the cross sectional briclrng ot the pan and this ,in a very simple and efiicient manner. Y i

In considering the foregoing description, reference shouldalso be had to Figure 8 as well as to Figures l to 4f inclusive.VV If desired, in the ends of the pans and thecastings at the points where they overlap, suitable holes may be drilled through which can be placed bolts which will aidlin providing a firm construction. ln Figures 3 and 8 l have indicated such an arrangement, referring to the holes by the reference character 2a, and to the bolts by the reference character 25, but in the other vfigures they have been omitted in order to avoid confusion in the drawing. v

The disclosures or" Figures 5, 6, 9 and l() substantially identical with that already considered with but one or two exceptions. ln these ligures the pan 12 instead of having its sides of equal depth throughout the length of the pan, has them sloping to follow the line of the mud ring. To reta-in the advantages of standardv bricking, however,`

we attach to each side of the pan 12 a projecting plate l2, which plates are fixed thereto by means of suitable bolts 0r rivets 2G. In this construction the space between the sides of the pan and the mud ring is closed oil by means of a longitudinally extending plate 27 as most clearly shown in Figure G. Where these plates aroused, in order to avoid duplication, the side plates 19 are dispensed with, the outer ends of the i vmove the side plates 12".

From the foregoing it will be seen that by providing standard ends the 'ire pans can be constructed with very great simplicity.`

`The ends'act as templets or forms to which lll CIK

the sides and bottom of the pans may be attached. One size of end castings will answer for a number of sizes or lire box widths, variation being taken care of by providing ditferent widths of side plates between the pans and the side of the lire box. Also, as previously pointed out, the scheine has the additional advantage of providing means whereby a uniform briclring assembly can be adopted.

We claim:

l. `An oil burning locomotive fire box construction comprising in combination, a pair of re pan forming members constituting a gauge or templet for the pan,v means for supporting said members from the mud ring, and a separable iire pan adapted to be supportedl by said members.

2. An oil burning locomotive iire box construction comprising in combination a fire pan casting for each endfof the fire box constituting a gauge or templet for the pan and a separable fire pan supported by and extending between said castings.

3. An oil burning pan construction for locomotives adapted to permit the use of a standard arrangement of refractory lining bricks, comprising in combination, a pair of' end forming members, means Jfor supporting them from the fire box, and a separable pan extending between and supported by said end forming members. Y

4L. An oil burning pan construction adapted to be applied to locomotive fire boxes of varying sizes comprising in combination, a pair or standardized end castings, a separable pan extending between said castings and a refractory lining for the pan and the castings composed of a standardized arrangement of bricks.

5. VAn oil burning locomotive lire box construction comprising in combination; side sheets, forward and back sheets and a mud ring; a pair of iire pan forming members of a width narrower than the distance between the side sheets; means for supporting said members `from the mud ring; a separable pan adapted to extend between and to be supported by said members; a refractory lining for the pan and said members; and reractory floor walls extending from the pan to the said sheets.

6. An oilburning pan construction adapted to be applied to locomotive fire boxes of varying sizes comprising in combination, a pair of end castings, means for supporting said castings from the re box, a pan extending between and supported by the end castings, the pan and castings being together or' a size smaller than that of the fire box to which they are applied, and means for closing the spaces between the sides and ends of the pan and castings and thel walls of the fire box.

In testimony whereof we have hereunto signedour names. Y

RALEIGH J. HIMMELRIGHT.

V ALFRED H. WILLETT. 

